{"data":{"id":"us/49-cfr-appendix-a-to-part-215","jurisdiction":"us","citation":"49 CFR Appendix A to Part 215","heading":"Appendix A to Part 215—Railroad Freight Car Components","body":"List of components whose use is restricted by § 215.203 of this part.\nA. Air brakes:\nThe “K” type.\nB. Axles:\n1. Former AAR alternate standard tubular type.\n2. Axle with letters “RJ” stamped on the end of the journal.\nC. Couplers:\n1. AAR type “D”, top or bottom operated.\n2. AAR type “E” with 5″ by 7″ shank.\nD. Draft arrangement:\n1. Miner FR-16 and FR-19-F draft gears.\n2. Farlow draft attachment.\nE. Plain journal bearings:\nCartridge type.\nF. Roller bearings:\n1. Nippon Sieko Kabushiki Kaish (NSK) size 6 1/2″ by 12″ (marked “AAR 11”).\n2. Hyatt cylindrical bearing, all sizes (marked “AAR 2”).\n3. SKF “Piggybacker” spherical roller, size 6″ by 11″ (marked “AAR 7”).\nG. Trucks:\n1. Arch bar type.\n2. Truck with cast steel pedestal side frame, short wheel base, and no bolster.\nH. Truck bolsters:\n1. A bolster with one of the following pattern numbers listed according to manufacturer:\nA.S.F. Dresser (Symington) Birdsboro Lenoir car works\n21183-B BO 5234 1458 CS-184.\n1468\n21183-N BO 5263 1471 CS-611.\nBO 7076\n21648-C BO 7076-A\n22056-E BO 7115\n2. Bolster cast before 1927.\n3. Bolster without an identification mark or pattern number.\nI. 1. Truck side frames:\nA side frame with one of the following pattern numbers listed according to manufacturer:\nA.S.F. National castings Buckeye Dominion\n7273 33793-1B 3-1776 TF-5100\n7323 F-420\n21362 (cast prior to June 1941)\nPittsburgh steel foundry Scullin steel Bettendorf Canadian steel foundry\n31673 42-CS-180 UT 456 26565\n4-1862\n3-1674 4665\n4-2045 4770\n12897 4942\n12921 5220\n21263 5364\n5364-C\n5364-E\n5811-A\n5869-B\n6577-A\n2. Side frame cast before 1927.\n3. Side frame without an identification mark or pattern number.\n4. Side frame with an “I”, “T”, or “L” section compression or tension member.\nJ. Wheels:\n1. Cast iron wheel.\n2. Cast steel wheel marked “AAR X-2.”\n3. Southern cast steel wheel manufactured before May 7, 1958.\n4. Griffin, three-riser cast steel wheel, ball rim design, 70-ton capacity.\n5. Griffin, three-riser cast steel wheel, two-wear, 70- and 50-ton capacity, 33 inch, (marked X-5 or CS-2).\n6. Wrought steel wheel manufactured before 1927, as indicated by marking on wheel.\n7. Cast steel wheel marked AAR X-4.\n8. Davis cast steel wheel.\n9. One-wear, 70-ton Southern (ABEX) U1 cast steel wheels dated May 7, 1958 through December 31, 1969.\nA. Wheels dated May 7, 1958, to January 1, 1964, are marked with the symbol “70T” cast on the back of the wheel plate; they are not marked “U-1.”\nB. Wheels dated January 1, 1964 through December 31, 1969, are marked with the symbols “CJ-33” and “U-1” or “70T” and “U-1” cast on the back of the wheel plate.\nK. Yokes:\n1. Riveted type.\n2. Keyless type.\n3. Vertical key type.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","PART 215—RAILROAD FREIGHT CAR SAFETY STANDARDS"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"a588afc902d0753efd88c1013b26927f1bf380b9baa9c95928c4251fe3ce4d53","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-215.421","next":"us/49-cfr-appendix-b-to-part-215"},"notice":"GroundRules: Original legal text. Not legal advice."}